From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Sat, 1 Sep 2018 09:25:45 +0000 (+0200)
Subject: Tweak piece values for variants without checks
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=bf4a1fd60d1a5c44d29586f0431ca5db1ff1e75e;p=fairystockfish.git

Tweak piece values for variants without checks

STC racingkings
LLR: 2.97 (-2.94,2.94) [0.00,10.00]
Total: 349 W: 211 L: 111 D: 27
http://35.161.250.236:6543/tests/view/5b8a5c926e23db0fbab0dd13
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index b78ab09..3e2d138 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -926,7 +926,7 @@ namespace {
     // Initialize score by reading the incrementally updated scores included in
     // the position object (material + piece square tables) and the material
     // imbalance. Score is computed internally from the white point of view.
-    Score score = pos.captures_to_hand() ? pos.psq_score() / 2 : pos.psq_score();
+    Score score = pos.captures_to_hand() || !pos.checking_permitted() ? pos.psq_score() / 2 : pos.psq_score();
     // For antichess-like variants, use negative piece values
     if (  (   pos.extinction_value() == VALUE_MATE
            && pos.extinction_piece_types().find(ALL_PIECES) != pos.extinction_piece_types().end())